SERENA-4: A Comparative Study of AZD9833 Plus Palbociclib Versus Anastrozole Plus Palbociclib in Patients With ER-Positive HER2 Negative Breast Cancer Who Have Not Received Any Systemic Treatment for Advanced Disease.

Sponsor
AstraZeneca (Industry)
Overall Status
Recruiting
CT.gov ID
NCT04711252
Collaborator
(none)
1,402
296
2
96.5
4.7
0

Study Details

Study Description

Brief Summary

The study is intended to show superiority of AZD9833 in combination with palbociclib (a CDK4/6 inhibitor) versus anastrozole (an aromatase inhibitor) and palbociclib as the initial treatment of patients with hormone receptor-positive (ER-positive), human epidermal growth factor 2-negative (HER2-negative) advanced/metastatic breast cancer.

Condition or Disease Intervention/Treatment Phase
Phase 3

Detailed Description

A Randomised, Multicentre, Double-Blind, Phase III study will evaluate the safety and efficacy of AZD9833 (next generation oral SERD) in combination with palbociclib versus anastrozole in combination with palbociclib for the treatment of patients with ER-positive breast cancer. The goal of the study is to demonstrate superiority of AZD9833 over anastrozole in the context of combination with palbociclib in first line setting.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
1402 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Participant, Care Provider, Investigator)
Primary Purpose:
Treatment
Official Title:
SERENA-4: A Randomised, Multicentre, Double-Blind, Phase III Study of AZD9833 (an Oral SERD) Plus Palbociclib Versus Anastrozole Plus Palbociclib for the Treatment of Patients With Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer Who Have Not Received Any Systemic Treatment for Advanced Disease
Actual Study Start Date :
Jan 28, 2021
Anticipated Primary Completion Date :
Nov 10, 2025
Anticipated Study Completion Date :
Feb 12, 2029

Arms and Interventions

Arm Intervention/Treatment
Experimental: AZD9833 + palbociclib

The patients will receive AZD9833 (75 mg, PO, once daily) + palbociclib (PO, once daily, 125 mg for 21 consecutive days followed by 7 days off treatment) + anastrozole placebo (1 mg, PO, once daily)

Drug: AZD9833
Dosage formulation: AZD9833 tablets will be administered orally

Drug: Anastrozole placebo
Dosage formulation: anastrozole placebo tablets will be administrated orally.

Drug: Palbociclib
Dosage formulation: palbociclib tablets/capsules will be administered orally

Drug: Luteinizing hormone-releasing hormone (LHRH) agonist
Men (when medically applicable) and pre- or peri-menopausal women are required to receive a monthly LHRH agonist.

Active Comparator: Anastrozole + palbociclib

The patients will recieve Anastrozole (1 mg, PO, once daily) + palbociclib (PO, once daily, 125 mg for 21 consecutive days followed by 7 days off treatment) + AZD9833 placebo (PO, once daily)

Drug: Anastrozole
Dosage formulation: Anastrozole tablets will be administered orally.

Drug: AZD9833 placebo
Dosage formulation: AZD9833 placebo tablets will be administrated orally.

Drug: Palbociclib
Dosage formulation: palbociclib tablets/capsules will be administered orally

Drug: Luteinizing hormone-releasing hormone (LHRH) agonist
Men (when medically applicable) and pre- or peri-menopausal women are required to receive a monthly LHRH agonist.

Outcome Measures

Primary Outcome Measures

  1. Progression-free survival (PFS) assessed by the Investigator as defined by response evaluation criteria in solid tumors (RECIST) version 1.1 [From randomization until progression per RECIST 1.1 as assessed by the investigator at local site or death due to any cause (up to 5 years)]

    PFS is defined as the time from randomization to objective disease progression (as assessed by RECIST) or death.

Secondary Outcome Measures

  1. Overall survival (OS) [From randomization until the date of death due to any cause (up to 8 years)]

    The OS is defined as the time from randomization to death due to any cause.

  2. Second progression-free survival (PFS2) [From randomization to the earliest of the progression event (following the initial progression), subsequent to first subsequent therapy or death (up to 5 years)]

    Time to second progression or death (PFS2) will be defined as the time from randomisation to the earliest of the progression event (following the initial progression), subsequent to first subsequent therapy or death.

  3. Objective response rate (ORR) assessed by the Investigator as defined by RECIST version 1.1 [From randomization until a response or in the absence of a response from randomization up until progression, or the last evaluable assessment in the absence of progression (up to 5 years)]

    ORR is defined as the proportion of patients who have a CR or partial response, as determined by the investigator at local site per RECIST 1.1.

  4. Duration of response (DoR) assessed by the Investigator as defined by RECIST version 1.1 [From the date of first documented response until date of documented progression per RECIST 1.1 as assessed by the investigator at local site or death due to any cause (up to 5 years)]

    The DoR will be defined as the time from the date of first documented response until date of documented progression or death in the absence of disease progression.

  5. Time to chemotherapy (TTC) [From randomization until the earlier of the start date of chemotherapy or death due to any cause (up to 5 years)]

    Time to chemotherapy is defined as the time from randomization until the earlier of the start date of chemotherapy or death due to any cause.

  6. Time to first subsequent anti-cancer therapy (TFST) [From randomization until the earlier of start date of the first subsequent anti-cancer therapy after discontinuation of randomized treatment, or death due to any cause (up to 5 years)]

    TFST is defined as time from randomization until the earlier of start date of the first subsequent anti-cancer therapy after discontinuation of randomized treatment, or death due to any cause.

  7. Clinical benefit rate at 24 weeks (CBR24) [At least 23 weeks after randomisation]

    CBR at 24 weeks is defined as the percentage of participants who have a complete response (CR) or partial response or who have stable disease (SD) per RECIST 1.1 as assessed by the investigator at local site for at least 23 weeks after randomization (to allow for an early assessment within the assessment window).

  8. Time to second subsequent therapy (TSST) [From randomization until the earlier of start date of the second subsequent anti-cancer therapy after discontinuation of first subsequent treatment, or death due to any cause (up to 5 years)]

    TSST is defined as time from randomization until the earlier of start date of the second subsequent anti-cancer therapy after discontinuation of first subsequent treatment, or death due to any cause.

  9. Plasma concentration of AZD9833 at specified timepoints [on Day 15]

    To assess the steady state PK of AZD9833 in combination with palbociclib in all participants who receive at least one dose of AZD9833 per the protocol, for whom there are at least one reportable PK concentration.

  10. Change from baseline in EORTC QLQ-C30 scale scores [From baseline to 24 weeks post progression (up to approximately 5 years)]

    Change from baseline in EORTC QLQ-C30 scale scores for each patient at each post-baseline visit. The comparison will include all randomised patients, as randomised, with baseline and at least one post-baseline visit score for the scale score.

  11. Change from baseline in EORTC QLQ-BR45 scale scores [From baseline to 24 weeks post progression (up to approximately 5 years)]

    Change from baseline in EORTC QLQ-BR45 scale scores for each patient at each post-baseline visit. The comparison will include all randomised patients, as randomised, with baseline and at least one post-baseline visit score for the scale score.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 130 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion criteria:
  • Pre-/peri-menopausal women or men can be enrolled if amenable to be treated with concomitant, approved LHRH agonists for the duration of the study treatment.

  • De novo Stage 4 disease, or recurrence from early stage disease after standard adjuvant endocrine therapy meeting either one of the following criteria:

  1. Received at least 24 months of AI treatment as part of their adjuvant therapy and at least 12 months have elapsed since the patient's last dose of adjuvant AI therapy without disease progression on treatment

  2. Received at least 24 months of tamoxifen treatment as part of their adjuvant endocrine therapy

  • Histologically or cytologically documented diagnosis of ER+, HER2-negative breast cancer based on local laboratory results.

  • Previously untreated with any systemic anti-cancer therapy for their locoregionally recurrent or metastatic ER+ disease.

  • Measurable disease as defined per RECIST v.1.1 OR at least one lytic or mixed (lytic + sclerotic) bone lesion that can be assessed by CT or MRI.

  • Eastern Cooperative Oncology Group performance status of 0 or 1.

  • Adequate organ and marrow function.

  • Willingness and ability to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures.

Exclusion criteria:
  • Previous neoadjuvant or adjuvant treatment with an AI treatment +/- CDK4/6 inhibitor with disease recurrence while on or within 12 months of completing treatment.

  • Previous treatment with AZD9833.

  • Participation in another clinical study with a study treatment or investigational medicinal device administered in the last 4 weeks prior to randomization or concurrent enrollment in another clinical study, unless it is an observational (non-interventional) clinical study or during the follow-up period of an interventional study.

  • Advanced, symptomatic, visceral spread, that are at risk of life-threatening complications in the short term.

  • Known active uncontrolled or symptomatic CNS metastases, carcinomatous meningitis, or leptomeningeal disease.

  • Any clinically important and symptomatic heart disease .

  • Currently pregnant (confirmed with positive pregnancy test) or breast-feeding.

  • As judged by the investigator, any evidence of diseases (such as severe or uncontrolled systemic diseases, renal transplant and active bleeding diseases) which, in the investigator's opinion, makes it undesirable for the participant to participate in the study or that would jeopardize compliance with the protocol.

  • Any concurrent anti-cancer treatment.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Contacts and Locations

Locations

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Sponsors and Collaborators

  • AstraZeneca

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
AstraZeneca
ClinicalTrials.gov Identifier:
NCT04711252
Other Study ID Numbers:
  • D8532C00001
  • 2020-002276-12
First Posted:
Jan 15, 2021
Last Update Posted:
Jul 13, 2022
Last Verified:
Jul 1, 2022

Study Results

No Results Posted as of Jul 13, 2022